From 2013 to 2014 the increase in “Unaccompanied Alien Children” crossing the southern border was 106%
From 2013 to 2014 the increase in “Family Units” crossing the southern border was 493%
From 2013 to 2014 in the Rio Grande Valley, where most illegal border crossings occur, the “Family Units” illegally crossing the border increased more than 500% to 42,358, the “Unaccompanied Alien Children” illegally crossing the border increased 189% to 42,164.
http://www.cbp.gov/sites/default/files/documents/SWB%20Family%20and%20UAC%20Apps.pdf
This article is worse. They are coming from all over the world: